Firstly, Eugene has had operations on his head to release brain pressure. They've removed parts of his skull on either side in an attempt to do this. His condition was looking up from Monday onwards, but then looked worse as his brain continued to swell after fluid was extracted. Doctors said basically if the brain gets too compressed, blood flow will slow, and the situation could get a lot worse. Stages can be taken to prevent this i.e firstly let out fluid, then slightly constrict blood flow but these avenues are only so effective. Hopefully his situation looks up. On a better note, he has been moved from ICU to a stable position, but will remain in induced coma for another week probably. It is looking like the whole saga will go for months.
Basically now they're waiting for the 72 hours period called "the plateau' by neurologists to pass. This is the period where the brain will either settle or get worse. They have one more trump up their sleeve if the brain continues to swell which is to take out yet another piece of bone, but after that, there isn't a heap that can be done.
Fuck I hope he pulls through this. It's shocking to think that we could be losing a best friend here.